The Khronos Group - a non-profit industry consortium to develop, publish and promote open standard, royalty-free media authoring and acceleration standards for desktop and handheld devices, combined with conformance qualification programs for platform and device interoperability.

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Stride is clear and commonly used. It means bytes in a row of pixels including any padding. So an image could be 510 pixels in width and rounded up to 512 pixels. The stride would be 512 * bit depth...

Both GLES2/3 have a programmable graphics pipeline which include fragment shaders. Fragment shaders allow you to run a kernel that can include a large range of mathematical operations on a per-pixel...

Using glReadPixels is always expensive, how expensive depends on the platform. But most platforms need to stall rendering and wait for rendering to finish, with a possible resolve to another buffer,...

Yes, you can draw either separate triangles or triangle strips. However if you have faceculling, you need to be aware that triangles have a front and back faces based on the order of the verts. (e.g....